Blood compatibility improvement of titanium oxide film modified by doping La2O3
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La2O3 doped titanium oxide (TiO2) films with different concentration were deposited by means of the Radio-Frequency magnetron sputtering technique. The microstructure and surface properties of TiO2 films were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and contact angle test. The blood compatibility of the specimens was evaluated by tests of platelet adhesion. Results show that pure rutile phase is formed in doped samples and La2O3 incorporation significantly improves the wettability and hemocompatibility of TiO2 films. Our studies demonstrate that La2O3 doped TiO2 films are potentially useful biomaterials with good blood compatibility.
KeywordsTiO2 Human Serum Albumin Interfacial Tension La2O3 TiO2 Film
This work is supported by the National Natural Science Foundation of China under Grant No 30370410 and 30770588.
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